RELEASE 3.0.0 now with mail login support and double check to DB layer

* check first at imap auth using a stream imap object, this is pretty
  bad for slow connections but usefull as didacticall learning
* now we check both imap and database for the user
* imap mail must be configured in the config/imap.php file, mayor
  mail providers use special ways and may not work.

Author: mckaygerhard

README.md

@@ -62,6 +62,9 @@ the line of the variable `$rs_access` has the status.. if are not TRUE or not NU
 Since version 2.0.0 a database layer will be necessary so an extra file at `webappweb/models/Usersmodel.php`
 its necesary to provide functionality, and `$rs_access` is the result of the DB check.
 
+Since version 3.0.0 a imap mail layer was added so an extra files are at `webappweb/libraries/Imap.php` 
+and `webappweb/config/imap.php`, `$im_access` is the result of the mail login check.
+
 #### Process simple login
 
 This is the main entry controller, it will load the views of login form page 

webappweb/config/imap.php

@@ -0,0 +1,27 @@
+<?php
+defined('BASEPATH') || exit('No direct script access allowed');
+
+$config['imap_secu'] = 'tls';
+$config['imap_cert'] = FALSE;
+$config['imap_host'] = 'mydomainofmail.com';
+$config['imap_port'] = 143;
+$config['imap_user'] = NULL;
+$config['imap_pass'] = NULL;
+
+$config['imap_folders'] = [
+	'inbox'  => 'INBOX',
+	'sent'   => 'Sent',
+	'trash'  => 'Trash',
+	'spam'   => 'Spam',
+	'drafts' => 'Drafts',
+];
+
+$config['expunge_on_disconnect'] = FALSE;
+
+$config['imap_cache'] = [
+	'active'     => FALSE,
+	'adapter'    => 'file',
+	'backup'     => 'file',
+	'key_prefix' => 'imap:',
+	'ttl'        => 60,
+];

webappweb/controllers/Indexauth.php

@@ -32,12 +32,15 @@ public function auth($action = 'logout', $username = NULL, $userclave = NULL)
 		if ( $action == 'login' )
 		{
 			$this->load->model('usersmodel');
-			$rs_access = $this->usersmodel->login($username, $userclave);
+			
+			$im_access = $this->usersmodel->loginimap($username, $userclave);
+			
+			$rs_access = $this->usersmodel->logindb($username, $userclave);
 		}
 
 		$data = array();
 		$message = 'Invalid login parameters or session ended';
-		if($rs_access)
+		if($rs_access AND $im_access)
 		{
 			$message = 'Session initialized';
 			$viewtitle = 'index at Pagetest';